Copolyamide from 1,4-cyclohexane dicarboxylic acid and diamine m

Details Copolyamide from 1,4-cyclohexane dicarboxylic acid and diamine m Copolyamide from 1,4-cyclohexane dicarboxylic acid and diamine m

1982-06-28

1984-09-11

Anderson, Harold D.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524413, 524433, 524437, 528324, 528338, 528339, 528340, 528346, C08G 6926

Patent

active

044710887

ABSTRACT:
A copolyamide comprised of undecamethylenehexahydroterephthalamide units and hexamethylenehexahydroterephthalamide units having a trans isomer ratio of hexahydroterephthalic acid residues of 57 to 83 percent is provided. The copolyamide is suitable for injection and extrusion molding. The copolyamide is prepared by a process comprising heating an equimolar salt of undecamethylenediamine and hexahydroterephthalic acid and an equimolar salt of hexamethylenediamine and hexahydroterephthalic acid at a maximum temperature of about 280 to 360.degree. C. to stably melt-polymerize the copolyamide. A copolyamide molding composition comprised of the copolyamide and an inorganic reinforcing agent can be formed into various molded articles having excellent properties.

REFERENCES:
patent: 3629053 (1971-12-01), Kimura et al.

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